235352989 has 2 divisors, whose sum is σ = 235352990. Its totient is φ = 235352988.

The previous prime is 235352963. The next prime is 235353029. The reversal of 235352989 is 989253532.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 188156089 + 47196900 = 13717^2 + 6870^2 .

It is a cyclic number.

It is not a de Polignac number, because 235352989 - 2⁹ = 235352477 is a prime.

It is a super-3 number, since 3×235352989³ (a number of 26 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (235352189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 117676494 + 117676495.

It is an arithmetic number, because the mean of its divisors is an integer number (117676495).

Almost surely, 2^235352989 is an apocalyptic number.

It is an amenable number.

235352989 is a deficient number, since it is larger than the sum of its proper divisors (1).

235352989 is an equidigital number, since it uses as much as digits as its factorization.

235352989 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 583200, while the sum is 46.

The square root of 235352989 is about 15341.2186282577. The cubic root of 235352989 is about 617.4094030243.

The spelling of 235352989 in words is "two hundred thirty-five million, three hundred fifty-two thousand, nine hundred eighty-nine".